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THE DEVELOPMENT OF LOBSTER PUERULUS (PANULIRUS ORNATUS AND P. HOMARUS) IN CAPTIVITY ENVIRONMENT Saputra, Ishaaq; Priyambodo, Bayu
Indonesian Aquaculture Journal Vol 18, No 2 (2023): (December, 2023)
Publisher : Center for Fisheries Research, Agency for Marine and Fisheries Research and Human Resource

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15578/iaj.18.2.2023.169-177

The present study was conducted to investigate the development of Panulirus ornatus and P. homarus puerulus larvae into juveniles in a captive environment. Pueruli were collected from the local fishermen and transported by air to the research facilities. Puerulus of each species were stocked into 3 floating plastic compartments (5 cm × 12 cm × 17 cm) with sufficient holes, aeration, and a filtration system until reached their first moulting. Results indicated that both puerulus species were completely moulted after 6 days of stocking with the survival rate of 100% and 93.3%. Moulting began on Day 5 for P. ornatus and Day 4 for P. homarus pueruli. The weight of P. ornatus increased significantly after the metamorphosis (P<0.05). The initial and final weights of P. ornatus were significantly greater than P. homarus (P<0.05). In addition, the total and carapace lengths of both species were significantly increased (P<0.05). Morphological observations indicated that there was a significant distinguishing feature such as the antenae form and body pattern colour of both species. In conclusion, proper handling of the pueruli according to each species is required to preserve the quality in order to achieve greater success in metamorphosis into juveniles.

PENGARUH PERBEDAAN PEMBERIAN PAKAN IKAN RUCAH DAN KERANG COKLAT (Mytilopsis adamsi) PADA PERTUMBUHAN KEPITING BAKAU (Scylla paramamosain) Arfat; Abidin, Zaenal; Priyambodo, Bayu
Journal of Fish Nutrition Vol. 5 No. 1 (2025): Journal Of Fish Nutrition
Publisher : Journal of Fish Nutrition

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jfn.v5i1.7565

Mangrove crab is one of the leading export commodities in the fisheries sector which has a fairly high selling price at the farmer level. This commodity has great potential to be cultivated in the Asia-Pacific region. However, mangrove crab production in Indonesia is currently still dominated by wild catches because its cultivation activities have not developed optimally. to determine the effect of feeding trash fish and brown mussels on the growth and survival of Mangrove Crabs (S. paramamosain). This study was conducted for 90 days from December 2024 to March 2025. The research location was in the ponds of Candi Manik Village, Sekotong District, West Lombok Regency, West Nusa Tenggara. The research method used 2 treatments, namely trash fish and brown mussels, each of which was repeated 20 times so that 40 experimental units were obtained according to the number of crabs, the treatments tested were trash fish (R) and brown mussels (K). The research data were analyzed using statistical analysis at a real level of 5%. the analysis used to test the results of the experiment was the t-test. The data tested t is the Specific Growth Rate (SGR) value, absolute weight growth, relative weight growth, and crab molting frequency using the mhen withny test while the survival rate (SR) data is analyzed descriptively. The results of the study showed that the absolute, relative, specific weight growth of crabs, molting frequency and survival given feed using brown mussels were higher than those given feed using trash fish. Feeding brown mussels resulted in better absolute, relative, specific growth, molting frequency and survival compared to feeding trash fish on the growth of mangrove crabs. Water quality measurements were within the normal range for the life of mangrove crabs. Keywords: Trash Fish, Mangrove Crabs, Brown Mussels, Molting, Growth

The Characteristics of Chitosan Derived from Lobster Shells and its Effect on Fungi Activity and Water Stability of Lobster Pellets Ihsan, Muhsinul; Harris, Ali; Mukminah; Megawati; Purwati, Nining; Muliasari, Handa; Priyambodo, Bayu; Jones, Clive; Nankervis, Leo
Jurnal Ilmiah Perikanan dan Kelautan Vol. 17 No. 2 (2025): JURNAL ILMIAH PERIKANAN DAN KELAUTAN
Publisher : Faculty of Fisheries and Marine Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/jipk.v17i2.57474

Graphical Abstract Highlights of Research The chitosan was successfully produced from lobster shells Panulirus homarus. The characteristics and quality of chitosan from lobster shells Panulirus homarus were observed. The anti-fungal activity of chitosan was assessed. Chitosan enhances the water stability of lobster pellets. Abstract Tropical rock lobster aquaculture is a lucrative industry that is currently limited by the lack of appropriate formulated feed. Its nocturnal, benthic feeding behavior necessitates a water-stable feed that maintains integrity under tropical marine conditions without degrading. Chitosan, a biopolymer derived from lobster (Panulirus homarus) shells, has potential applications in aquaculture as an antifungal agent and feed binder. We report on the characteristics of chitosan extracted from the exoskeleton of spiny lobsters (Panulirus homarus), including its effect on fungal activity and water stability of pellets. Chitosan was produced through three main steps: deproteination, demineralization, and deacetylation. The resulting chitosan was characterized through crude composition (AOAC methods), FTIR spectra, and scanning electron microscope (SEM), while antifungal activity was assessed through in vitro assays. Chitosan was used to coat lobster feed pellets by immersion method at different concentrations (0%, 0,5%, 1%, 1,5%, and 2%), and its impact on pellet water stability was assessed. There were three replications in fungal activity and water stability test. The yield of chitosan was 5.9 ± 0.01% of the total shell mass, with 96.99% ± 0.01 degree of deacetylation (DD). The resulting product contained 5.94 ± 0.07% moisture, 36.72 ± 0.05% ash and 2.73 ± 0.08% nitrogen. Chitosan morphology was characterized as an irregular shape with dimensions ranging from 157 to 391 µm, with a combination of striated surface textures. Increasing concentration of chitosan increased water stability of pellets up to 1.5% inclusion, while 0.5% optimized Fusarium sp. inhibition. These findings suggest that chitosan from lobster shells can be sustainably utilized to enhance feed quality, reducing fungal contamination and nutrient leaching in aquaculture systems.

PENGARUH PERBEDAAN PEMBERIAN PAKAN IKAN RUCAH DAN KERANG COKLAT (Mytilopsis adamsi) PADA PERTUMBUHAN KEPITING BAKAU (Scylla paramamosain) Arfat; Abidin, Zaenal; Priyambodo, Bayu
Journal of Fish Nutrition Vol. 5 No. 1 (2025): Journal Of Fish Nutrition
Publisher : Journal of Fish Nutrition

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jfn.v5i1.7565

Mangrove crab is one of the leading export commodities in the fisheries sector which has a fairly high selling price at the farmer level. This commodity has great potential to be cultivated in the Asia-Pacific region. However, mangrove crab production in Indonesia is currently still dominated by wild catches because its cultivation activities have not developed optimally. to determine the effect of feeding trash fish and brown mussels on the growth and survival of Mangrove Crabs (S. paramamosain). This study was conducted for 90 days from December 2024 to March 2025. The research location was in the ponds of Candi Manik Village, Sekotong District, West Lombok Regency, West Nusa Tenggara. The research method used 2 treatments, namely trash fish and brown mussels, each of which was repeated 20 times so that 40 experimental units were obtained according to the number of crabs, the treatments tested were trash fish (R) and brown mussels (K). The research data were analyzed using statistical analysis at a real level of 5%. the analysis used to test the results of the experiment was the t-test. The data tested t is the Specific Growth Rate (SGR) value, absolute weight growth, relative weight growth, and crab molting frequency using the mhen withny test while the survival rate (SR) data is analyzed descriptively. The results of the study showed that the absolute, relative, specific weight growth of crabs, molting frequency and survival given feed using brown mussels were higher than those given feed using trash fish. Feeding brown mussels resulted in better absolute, relative, specific growth, molting frequency and survival compared to feeding trash fish on the growth of mangrove crabs. Water quality measurements were within the normal range for the life of mangrove crabs. Keywords: Trash Fish, Mangrove Crabs, Brown Mussels, Molting, Growth

Effect Of Stocking Density On The Growth Performance And Survival Of Green Lobster Puerulus (Penulirus Homarus) Rostika, Rita; Leong Seng, Lim; Nurfaizi, Rinaldo; Priyambodo, Bayu; Zidni, Irfan
Journal of Social Research Vol. 3 No. 2 (2024): Journal of Social Research
Publisher : International Journal Labs

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55324/josr.v3i2.1874

This research aims to discover the growth rate and survival of puerulus green lobster (Panulirus homarus) kept in varied densities in controlled containers. This research was conducted from August 2022 through September 2022 for 60 days at Koperasi Samudera Bahari Utama, Girimukti Village, Pelabuhanratu, Sukabumi District, West Java. The method used in this research was Completely Randomized Design (CRD) with 5 treatments and 3 repetitions. These treatments were, A (density 10 lobsters/container), B (density 15 lobsters/container), C (density 20 lobsters/container), D (density 25 lobsters/container), and E (density 30 lobsters/container). The effect of each treatment was tested using the f-test in analysis of variance (ANOVA) at 5% test interval. If a significant difference was found, it would be followed by Duncan’s multiple range test. The parameters observed in this research were Survival Rate (SR), Feeding Efficiency (FE), Growth (GR) and water quality in the research media. From the research analysis, it was found that the highest parameters for Puerulus’s survival rate was in density A (10 lobsters) at 100%, for feeding efficiency (EPP) was in density A (10 lobsters) at the highest value of 5.07%, and for weight growth (WG), length growth (LG) during the research was in density A (10 lobsters) at a value of 2.4 gram. The oxygen content obtained from this research had a mean value of 6.2 mg/L. And the pH value was 7.66. The temperature was kept at 27-30°C range and the good salinity for lobster growth was at 25–28 ppt range

Growth and Survival of Mytilopsis adamsi During Larval to Early Juvenile Transition Under Different Salinity Conditions: Pertumbuhan dan Kelangsungan Hidup Mytilopsis adamsi Selama Transisi Larva ke Juvenil Awal pada Kondisi Salinitas yang Berbeda Ahyani, Dina; Muhklis, Alis; Priyambodo, Bayu
Indonesian Journal of Tropical Biology Vol. 1 No. 2 (2025): August 2025
Publisher : Yayasan Siti Widhatul Faeha

Show Abstract | Download Original | Original Source | Check in Google Scholar

Mytilopsis adamsi, a small filter-feeding bivalve mollusk, has become an invasive species cultivated in Indonesia as natural feed for economically valuable crustaceans. This study determined optimal salinity levels for growth and survival of M. adamsi during larval to early juvenile transition. Using a completely randomized design, four salinity treatments (10, 20, 30, and 40 ppt) were tested with three replicates each. Larvae were reared for 28 days with Nannochloropsis sp. and Pavlova lutheri as feed, developing from 50.4 µm to 140.17 ± 6.12 µm. Treatments at 20 and 30 ppt demonstrated optimal performance with identical specific growth rates (SGR) of 3.90% per day. Survival rates showed no significant difference (p > 0.05) between treatments, ranging from 24.6% to 27.8%, with highest values at 40 ppt (27.8 ± 0.4%). Statistical analysis revealed a quadratic relationship for SGR (y = -0.0014x² + 0.0615x + 3.2576, R² = 0.8753) with theoretical optimum at 22.0 ppt. The optimal salinity range for M. adamsi cultivation is 20–30 ppt based on growth performance. These results provide baseline data for commercial cultivation protocols and environmental management strategies.

Growth and Survival of Mytilopsis adamsi During Larval to Early Juvenile Transition Under Different Salinity Conditions: Pertumbuhan dan Kelangsungan Hidup Mytilopsis adamsi Selama Transisi Larva ke Juvenil Awal pada Kondisi Salinitas yang Berbeda Ahyani, Dina; Muhklis, Alis; Priyambodo, Bayu
Indonesian Journal of Tropical Biology Vol. 1 No. 2 (2025): August 2025
Publisher : Yayasan Siti Widhatul Faeha

Show Abstract | Download Original | Original Source | Check in Google Scholar

Mytilopsis adamsi, a small filter-feeding bivalve mollusk, has become an invasive species cultivated in Indonesia as natural feed for economically valuable crustaceans. This study determined optimal salinity levels for growth and survival of M. adamsi during larval to early juvenile transition. Using a completely randomized design, four salinity treatments (10, 20, 30, and 40 ppt) were tested with three replicates each. Larvae were reared for 28 days with Nannochloropsis sp. and Pavlova lutheri as feed, developing from 50.4 µm to 140.17 ± 6.12 µm. Treatments at 20 and 30 ppt demonstrated optimal performance with identical specific growth rates (SGR) of 3.90% per day. Survival rates showed no significant difference (p > 0.05) between treatments, ranging from 24.6% to 27.8%, with highest values at 40 ppt (27.8 ± 0.4%). Statistical analysis revealed a quadratic relationship for SGR (y = -0.0014x² + 0.0615x + 3.2576, R² = 0.8753) with theoretical optimum at 22.0 ppt. The optimal salinity range for M. adamsi cultivation is 20–30 ppt based on growth performance. These results provide baseline data for commercial cultivation protocols and environmental management strategies.

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